package com.itheima.reggie.util;

import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.reflection.MetaObject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

/**
 * 元数据对象处理器
 */
@Component
@Slf4j
public class MyMetaObjectHandler implements MetaObjectHandler {

    @Autowired
    private HttpServletRequest request;
    /**
     * 插入操作自动填充
     * @param metaObject
     */
    @Override
    public void insertFill(MetaObject metaObject) {
        log.info("公共字段自动填充[insert]");
        log.info(metaObject.toString());
        metaObject.setValue("createTime", LocalDateTime.now());
        metaObject.setValue("updateTime", LocalDateTime.now());
        Long empId = (Long) request.getSession().getAttribute("employee");
        if(empId == null){
            Long userId = (Long) request.getSession().getAttribute("user");
            metaObject.setValue("createUser", userId);
            metaObject.setValue("updateUser", userId);
        }
        //metaObject.setValue("createUser", BaseContext.getCurrentId());
        //metaObject.setValue("updateUser", BaseContext.getCurrentId());
        metaObject.setValue("createUser", empId);
        metaObject.setValue("updateUser", empId);
    }

    /**
     * 更新操作自动填充
     * @param metaObject
     */
    @Override
    public void updateFill(MetaObject metaObject) {
        log.info("公共字段自动填充[update]");
        log.info(metaObject.toString());

        //long id = Thread.currentThread().getId();
        //log.info("线程id为：{}",id);

        metaObject.setValue("updateTime", LocalDateTime.now());
        Long empId = (Long) request.getSession().getAttribute("employee");
        if(empId == null){
            Long userId = (Long) request.getSession().getAttribute("user");
            metaObject.setValue("updateUser", userId);
        }
        //metaObject.setValue("updateUser", BaseContext.getCurrentId());
        metaObject.setValue("updateUser", empId);

    }
}
